comparison data/model/AggregateWaveModel.h @ 297:c022976d18e8

* Merge from sv-match-alignment branch (excluding alignment-specific document).
  - add aggregate wave model (not yet complete enough to be added as a true
    model in a layer, but there's potential)
  - add play solo mode
  - add alignment model -- unused in plain SV
  - fix two plugin leaks
  - add m3u playlist support (opens all files at once, potentially hazardous)
  - fix retrieval of pre-encoded URLs
  - add ability to resample audio files on import, so as to match rates with
    other files previously loaded; add preference for same
  - add preliminary support in transform code for range and rate of transform
    input
  - reorganise preferences dialog, move dark-background option to preferences,
    add option for temporary directory location

+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    This file copyright 2007 QMUL.
+    
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#ifndef _AGGREGATE_WAVE_MODEL_H_
+#define _AGGREGATE_WAVE_MODEL_H_
+
+#include "RangeSummarisableTimeValueModel.h"
+#include "PowerOfSqrtTwoZoomConstraint.h"
+
+#include <vector>
+
+class AggregateWaveModel : public RangeSummarisableTimeValueModel
+{
+    Q_OBJECT
+
+public:
+    struct ModelChannelSpec
+    {
+        ModelChannelSpec(RangeSummarisableTimeValueModel *m, int c) :
+            model(m), channel(c) { }
+        RangeSummarisableTimeValueModel *model;
+        int channel;
+    };
+
+    typedef std::vector<ModelChannelSpec> ChannelSpecList;
+
+    AggregateWaveModel(ChannelSpecList channelSpecs);
+    ~AggregateWaveModel();
+
+    bool isOK() const;
+    bool isReady(int *) const;
+
+    size_t getComponentCount() const;
+    ModelChannelSpec getComponent(size_t c) const;
+
+    const ZoomConstraint *getZoomConstraint() const { return &m_zoomConstraint; }
+
+    size_t getFrameCount() const;
+    size_t getChannelCount() const;
+    size_t getSampleRate() const;
+
+    virtual Model *clone() const;
+
+    float getValueMinimum() const { return -1.0f; }
+    float getValueMaximum() const { return  1.0f; }
+
+    virtual size_t getStartFrame() const { return 0; }
+    virtual size_t getEndFrame() const { return getFrameCount(); }
+
+    virtual size_t getValues(int channel, size_t start, size_t end,
+			     float *buffer) const;
+
+    virtual size_t getValues(int channel, size_t start, size_t end,
+			     double *buffer) const;
+
+    virtual void getRanges(size_t channel, size_t start, size_t end,
+                           RangeBlock &ranges,
+                           size_t &blockSize) const;
+
+    virtual Range getRange(size_t channel, size_t start, size_t end) const;
+
+    virtual void toXml(QTextStream &out,
+                       QString indent = "",
+                       QString extraAttributes = "") const;
+
+signals:
+    void modelChanged();
+    void modelChanged(size_t, size_t);
+    void completionChanged();
+
+protected slots:
+    void componentModelChanged();
+    void componentModelChanged(size_t, size_t);
+    void componentModelCompletionChanged();
+
+protected:
+    ChannelSpecList m_components;
+    static PowerOfSqrtTwoZoomConstraint m_zoomConstraint;
+};
+
+#endif
+